DODGE RAM FORUM - Ram Forums and Owners Club! - Dodge Truck Forum

Go Back   DODGE RAM FORUM - Ram Forums and Owners Club! - Dodge Truck Forum > Dodge Ram Forum - Mod Zone - Custom Dodge Ram Mods - Dodge Ram Performance > Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8


Notices

Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 5.7-liter HEMI® V8 engine - 390 horsepower, 407 lb-ft of torque.


Latest Vendor News
AutoAnything
Addictive Desert Designs!
United Radio
Bayou Goat Mounts

Reply
 
Thread Tools
  #11  
Old 12-25-2009, 05:43 PM
SPEEDFREAK's Avatar
SPEEDFREAK SPEEDFREAK is offline
Dodge Ram Forum Senior Member!
 
Join Date: Oct 2009
Location: VA
Posts: 518
Gender: Male
Vehicle: 2010 RAM R/T
Trim Level: 450HP & 450TQ
Color: SPEED WHITE
Engine: 2009-2010 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 6
Rep:180
SPEEDFREAK has a spectacular aura aboutSPEEDFREAK has a spectacular aura about
Default

yes the tuner tweaked the tune one thing he said was he had to soften up the knock senor the #s are now 326hp and 338tq
__________________
k&N CAI, 3 1/2" 90 on CAI at TB, 85mm BBK TB,denso sp,180stat,syn oileng & rear gr,Catchcan, Addco sway bars f&r
1 3/4"amer rac hders high flowcats, 2 1/2" H pipe dul 2 1/2" piping, Diablo CT, Bilstin, Mcdrop 2/4,1deg cam 295/45-20bfgkdw,efan,13.4gtech
Reply With Quote
  #12  
Old 12-25-2009, 08:06 PM
iRockCrawler's Avatar
iRockCrawler iRockCrawler is offline
Dodge Ram Forum Senior Member!
 
Join Date: Oct 2009
Location: Ontario
Posts: 221
Gender: Male
Vehicle: 2009 Dodge Ram 1500
Trim Level: Sport
Color: Mineral Gray Metallic
Engine: 2009-2010 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 0
Rep:44
iRockCrawler is on a distinguished road
Default

what was the before?
Reply With Quote
  #13  
Old 12-26-2009, 12:47 AM
chefred112's Avatar
chefred112 chefred112 is offline
Dodge Ram Forum Senior Member!
 
Join Date: Feb 2009
Location: NorCal
Posts: 5,800
Gender: Male
Vehicle: 2005 Dodge Ram
Trim Level: SLT
Color: white
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 9
Rep:650
chefred112 is a splendid one to beholdchefred112 is a splendid one to beholdchefred112 is a splendid one to beholdchefred112 is a splendid one to beholdchefred112 is a splendid one to beholdchefred112 is a splendid one to behold
Default

nice numbers..not bad at all...I think my very first dyno tune #'s (in 2007) looked like that when i was runnin superchips (335hp/332tq)....now runnin ds with dyno tune, last dyno of may this year was 370hp/390tq (on bad tuning)
__________________
-fast freddie- one quick 05 hemi qc...with over 250k miles on odo... on the 5.7, stoker 6.4 now...Inertia Motorsports 392 stroker
5.7 e.t.'s: 1/8 - 7.85@93.20, 1/4 - 12.10@113.96 juice - 12.96 NA... 6.4 e.t. 12.59@106 NA
2005 Dodge Ram 1500 QC SLT: 12.107 @ 113.960 MPH
Reply With Quote
  #14  
Old 12-26-2009, 04:05 AM
Dave09BigHorn Dave09BigHorn is offline
Dodge Ram Forum Junior Member
 
Join Date: Sep 2009
Location: Sterling Heights, MI
Age: 5
Posts: 34
Gender: Male
Vehicle: 2009 Ram
Trim Level: Big Horn
Color: Black
Rep Power: 0
Rep:10
Dave09BigHorn is on a distinguished road
Default

Quote:
Originally Posted by iRockCrawler View Post
what was the before?
I would also like to know
Reply With Quote
  #15  
Old 12-26-2009, 06:25 PM
HEMI5150's Avatar
HEMI5150 HEMI5150 is offline
Dodge Ram Forum Senior Member!
 
Join Date: Dec 2009
Location: Fingerlakes - Upstate NY
Posts: 184
Gender: Male
Vehicle: 2010 Dodge Ram Quad 4X4
Trim Level: SPORT
Color: Black Pearl
Rep Power: 0
Rep:35
HEMI5150 is on a distinguished road
Default WTF...?????

Can somebody explain to me how dodge advertise`s 390hp/407trq, and you guys are only seeing slightly above 300hp...????
__________________

You might be able to bullshit your way to the top, BUT, it wont keep you there

Never believe what you hear, and only half of what you see
Reply With Quote
  #16  
Old 12-26-2009, 07:16 PM
Zonestar's Avatar
Zonestar Zonestar is offline
Dodge Ram Forum Senior Member!
 
Join Date: Aug 2008
Location: LaGrange, GA
Age: 57
Posts: 372
Gender: Male
Rep Power: 7
Rep:235
Zonestar has a spectacular aura aboutZonestar has a spectacular aura aboutZonestar has a spectacular aura about
Default

Quote:
Originally Posted by HEMI5150 View Post
Can somebody explain to me how dodge advertise`s 390hp/407trq, and you guys are only seeing slightly above 300hp...????
Manufactures advertise HP at the crank. In the real world its done at the rear wheels. There is always a reduction in power because of this.
Reply With Quote
  #17  
Old 12-26-2009, 08:49 PM
HEMI5150's Avatar
HEMI5150 HEMI5150 is offline
Dodge Ram Forum Senior Member!
 
Join Date: Dec 2009
Location: Fingerlakes - Upstate NY
Posts: 184
Gender: Male
Vehicle: 2010 Dodge Ram Quad 4X4
Trim Level: SPORT
Color: Black Pearl
Rep Power: 0
Rep:35
HEMI5150 is on a distinguished road
Default

Quote:
Originally Posted by Zonestar View Post
Manufactures advertise HP at the crank. In the real world its done at the rear wheels. There is always a reduction in power because of this.
wow, thats very misleading of dodge... they should be more specific how they got those numbers..!!!!
Most of us engine builders know that hp/trq at the crank dont meen sh*t...
its what gets to the ground is whats important

Oh well, i like my 2010 RT pretty good so far... BUT it does have ALOT of noise issues that i dont like (tranny noise issues)
__________________

You might be able to bullshit your way to the top, BUT, it wont keep you there

Never believe what you hear, and only half of what you see
Reply With Quote
  #18  
Old 12-26-2009, 10:11 PM
Get Bit's Avatar
Get Bit Get Bit is offline
Dodge Ram Forum Senior Member!
 
Join Date: Dec 2009
Location: Colorado
Posts: 357
Gender: Male
Vehicle: 2004 Dodge Ram RC 4x4
Trim Level: SLT Sport
Color: Silver
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 0
Rep:71
Get Bit will become famous soon enough
Default

Quote:
Originally Posted by HEMI5150 View Post
wow, thats very misleading of dodge... they should be more specific how they got those numbers..!!!!
Most of us engine builders know that hp/trq at the crank dont meen sh*t...
its what gets to the ground is whats important

Oh well, i like my 2010 RT pretty good so far... BUT it does have ALOT of noise issues that i dont like (tranny noise issues)
How is that misleading? All auto manufactures rate their vehicles HP at the crank, which is BHP. This also does not include the accessories that the engine turns, e.g. alternators, A/C compressors, etc.

Now, we as the consumer test the said HP via a chassis dyno, which reads at the tires and use somewhat of a broad range or % to determine the amount of loss there is between the flywheel and what it is actually putting to the ground. Manual transmissions eat up less power than automatics, so, depending on the setup, you can lose anywhere from 12-20% through the drivetrain.

All we care is about what it makes to the ground along with the correction factors and conditions in which the vehicle was dynoed in. Most stock 09 HEMI rams rated at 390hp will put down around 300-310 stock at the wheels. Now, these numbers can also vary with what dyno you're using. Mustang or inertia dynos tend to be a little lower than the more common dynos, like a dyno jet.

Dyno's are best for tuning and ensuring everything like timing, air to fuel ratios, etc are safe. The real test to see what power you are making is at the track. Trap speed based of weight of vehicle is a good indication of HP, the E.T. is the indication of how well and efficiently it puts it to the ground.
Reply With Quote
  #19  
Old 12-26-2009, 11:02 PM
HEMI5150's Avatar
HEMI5150 HEMI5150 is offline
Dodge Ram Forum Senior Member!
 
Join Date: Dec 2009
Location: Fingerlakes - Upstate NY
Posts: 184
Gender: Male
Vehicle: 2010 Dodge Ram Quad 4X4
Trim Level: SPORT
Color: Black Pearl
Rep Power: 0
Rep:35
HEMI5150 is on a distinguished road
Default

Quote:
Originally Posted by Get Bit View Post
How is that misleading? All auto manufactures rate their vehicles HP at the crank, which is BHP. This also does not include the accessories that the engine turns, e.g. alternators, A/C compressors, etc.

Now, we as the consumer test the said HP via a chassis dyno, which reads at the tires and use somewhat of a broad range or % to determine the amount of loss there is between the flywheel and what it is actually putting to the ground. Manual transmissions eat up less power than automatics, so, depending on the setup, you can lose anywhere from 12-20% through the drivetrain.

All we care is about what it makes to the ground along with the correction factors and conditions in which the vehicle was dynoed in. Most stock 09 HEMI rams rated at 390hp will put down around 300-310 stock at the wheels. Now, these numbers can also vary with what dyno you're using. Mustang or inertia dynos tend to be a little lower than the more common dynos, like a dyno jet.

Dyno's are best for tuning and ensuring everything like timing, air to fuel ratios, etc are safe. The real test to see what power you are making is at the track. Trap speed based of weight of vehicle is a good indication of HP, the E.T. is the indication of how well and efficiently it puts it to the ground.
yeah thanks, i know how dyno`s work...
i own one for tuning race engines in my shop for the harley guys.
Guess i`ll just stick to tuning harley race engines, and just use this new 300hp dodge hemi to haul`m to the racetrack
__________________

You might be able to bullshit your way to the top, BUT, it wont keep you there

Never believe what you hear, and only half of what you see
Reply With Quote
  #20  
Old 12-27-2009, 01:50 AM
Lil Black 4x4 Hemi's Avatar
Lil Black 4x4 Hemi Lil Black 4x4 Hemi is offline
Dodge Ram Forum Senior Member!
 
Join Date: Oct 2009
Location: Arkansas
Age: 33
Posts: 342
Gender: Male
Vehicle: 2008 Reg. Cab/Bed 4x4
Trim Level: SLT
Color: Black
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 0
Rep:70
Lil Black 4x4 Hemi will become famous soon enough
Send a message via AIM to Lil Black 4x4 Hemi Send a message via Yahoo to Lil Black 4x4 Hemi
Default

Quote:
Originally Posted by HEMI5150 View Post
yeah thanks, i know how dyno`s work...
i own one for tuning race engines in my shop for the harley guys.
Guess i`ll just stick to tuning harley race engines, and just use this new 300hp dodge hemi to haul`m to the racetrack
No need to be upset about it, your Harley's factory numbers came from the crank too. All cars have used crank ratings for the last 20-30 years.

Luke
__________________
K&N Cold Air Intake, Magnaflow Exhaust, Rancho RS5000s, TRUXXX Leveling Kit, Heavy Duty Towing Shackles, Recon Smoked Cab Lights, Chrome Fender Flares, Stainless Door-sills, Chrome Door Trim, Atturo Trail Blade 35x12.50R20, METAL Grille Inserts.
Reply With Quote
Reply

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Advertisement






All times are GMT -4. The time now is 09:48 PM.


= Copyright RamForumZ.com a Gigathreads.com Network Site =Ad Management by RedTyger
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
vB.Sponsors


=Gigathreads Network=
CLUBS MOPAR NATION DSM GPMM MAMM JAM
DIESEL Diesel Forum      
CHEVY Chevy Camaro Forum Chevy Volt Forum    
CHRYSLER Chrysler 300C Forum      
DODGE Dodge Avenger Forum Dodge Caliber Forum Dodge Challenger Forum Dodge Charger Forum
  Dodge Circuit Forum Dodge Hornet Forum Dodge Magnum Forum Dodge Nitro Forum
  Dodge Ram Forum Dodge Dakota Forum Dodge Durango Forum Dodge Dart Forum
FORD Ford Raptor Forum Ford F150 Forum Ford F100 Forum  
JEEP Jeep Forum      
PONTIAC Pontiac G8 Forum      
SRT SRT Viper Forum SRT Cuda Forum